我正在尝试向 EPJ plus 提交一篇文章，但出现以下错误：
LaTeX Warning: File `leer.eps' already exists on the system.
Not generating it from this source.
(c:/TeXLive/texmf-local/tex/latex/aries/svjour.cls
Document Class: svjour 2003/04/15
LaTeX document class for Springer journals - version 1.11
Class Springer-SVJour Warning: Specified option or subpackage "epj" not
found -
on input line 92.
! Class Springer-SVJour Error: No valid journal specified in option list.
我的代码：
\begin{filecontents}{leer.eps}
gsave
72 31 moveto
72 342 lineto
601 342 lineto
601 31 lineto
72 31 lineto
showpage
grestore
\end{filecontents}
\documentclass[epj]{svjour}
\usepackage{graphics}
\usepackage{amsmath, amscd, amsfonts, amssymb}
\begin{document}
TEXT
\edn{document}
我该怎么做才能消除这个错误？